Quizbank/College Physics Sem 1

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Wikinews-logo-prototype by Diego Grez.svg
8 min video
slides only

I just made a video that is available in three places:
1- https://www.youtube.com/watch?v=1mwIkHshOIg
2-My facebook page
3-c:File:Open Quizbank Proposal First.webm
See also the pdf printout of the slides
Lake Campus Symposium: Creating a bank so students won't break the bank
https://bitbucket.org/Guy_vandegrift/qbwiki/wiki/Home/
The conversion to LaTeX should make this bank more compatible with VLEs
CLICK HERE TO SEE HOW MANY PEOPLE ARE VISITING THESE QUESTIONS
 Quizbank - Quizbank/Python/LaTex - Category:QB/LaTeXpdf - QB - edit news
Students with minimal Python skills can now write numerical questions



College Physics Sem 1[edit]

This unit has 5 exams (tests) that can viewed by clicking the links (e.g., T1). They are classroom-ready exams based on the collection of quizzes shown below each exam. The fraction indicates the ratio of the number of questions randomly selected to the number of questions on each quiz. Students can access these quizzes using either the (uneditable) permalink or directly via links to subpages of QB. Students and instructors can also view all at /All. Ideas for use by instructors can be found at Quizbank/Instructions.

Quizbank/College Physics Sem 1/T1[edit]

  • Test is Wed 17 Sep 2018

2/4 from Special:Permalink/1828918 to QB/a02_1Dkinem_definitions
3/4 from Special:Permalink/1863423 to QB/a02_1Dkinem_equations
5/12 from Special:Permalink/1863384 to QB/b_motionSimpleArithmetic
3/4 from Special:Permalink/1863096 to QB/a03_2Dkinem_2dmotion
2/4 from Special:Permalink/1863115 to QB/a03_2Dkinem_smithtrain

00-Mathematics_for_this_course

Theta in radians minimalistic.svg
Vector components with unit vectors.svg

   Measured in radians, defines angle (in radians), where s is arclength and r is radius. The circumference of a circle is and the circle's area is is its area. The surface area of a sphere is and sphere's volume is

    A vector can be expressed as, , where , and are the x and y components. Alternative notation for the unit vectors include and . An important vector is the displacement from the origin, with components are typically written without subscripts: . The magnitude (or absolute value or norm) of a vector is is , where the angle (or phase), , obeys , or (almost) equivalently, . As with any function/inverse function pair, the tangent and arctangent are related by where . The arctangent is not a true function because it is multivalued, with .

Vectors A+B=C.png

    The geometric interpretations of and are shown in the figure. Vector addition and subtraction can also be defined through the components: AND

01-Introduction

Text Symbol Factor Exponent
giga G 1000000000 E9
mega M 1000000 E6
kilo k 1000 E3
(none) (none) 1 E0
centi c 0.01 E−2
milli m 0.001 E−3
micro μ 0.000001 E−6
nano n 0.000000001 E−9
pico p 0.000000000001 E−12
  • 1 kilometer = .621 miles and 1 MPH = 1 mi/hr ≈ .447 m/s
  • Typically air density is 1.2kg/m3, with pressure 105Pa. The density of water is 1000kg/m3.
  • Earth's mean radius ≈ 6371km, mass ≈ 6×1024
     kg
    , and gravitational acceleration = g ≈ 9.8m/s2
  • Universal gravitational constant = G ≈ 6.67×10−11
     m3·kg−1·s−2
  • Speed of sound ≈ 340m/s and the speed of light = c ≈ 3×108m/s
  • One light-year ≈ 9.5×1015m ≈ 63240AU (Astronomical unit)
  • The electron has charge, e ≈ 1.6 × 10−19C and mass ≈ 9.11 × 10-31kg. 1eV = 1.602 × 10-19J is a unit of energy, defined as the work associated with moving one electron through a potential difference of one volt.
  • 1 amu = 1 u ≈ 1.66 × 10-27 kg is the approximate mass of a proton or neutron.
  • Boltzmann's constant = kB1.38 × 10-23 JK−1, and the gas constant is R = NAkB8.314 JK−1mol−1, where NA6.02 × 1023 is the Avogadro number.
  • ≈ 8.987× 109 N·m²·C−2 is a fundamental constant of electricity; also ≈ 8.854 × 10−12 F·m−1 is the vacuum permittivity or the electric constant.
  • = 4π × 10−7 NA ≈ 1.257 × 10−6 N A (magnetic permeability) is the fundamental constant of magnetism: .
  • = h/(2π) ≈ 1.054×10−34 J·s the reduced Planck constant, and ≈ .526 × 10−10 m is the Bohr radius.

Two dimensional kinematics

Difference is denoted by , , or the Delta. or . Average, or mean, is denoted by , where is number and are probabilities. The average velocity is , and the average acceleration is , where denotes position. In CALCULUS, instantaneous values are denoted by v(t)=dx/dt and a=dv/dt=d2x/dt2.

The equations of motion for uniform acceleration are: , and, . Also, , and, . Note that only if the acceleration is uniform.

03-Two-Dimensional_Kinematics

Free fall velocity vectors.gif
           
           

  ...in advanced notation this becomes .

In free fall we often set, ax=0 and ay= -g. If angle is measured with respect to the x axis:

                    

Relative motion man on train.gif

The figure shows a Man moving relative to Train with velocity, , where the velocity of the train relative to Earth is, is the velocity of the Train relative to Earth. The velocity of the Man relative to Earth is,

      If the speeds are relativistic, define u=v/c where c is the speed of light, and this formula must be modified to:


Quizbank/College Physics Sem 1/T2[edit]

7/19 from Special:Permalink/1863392 to QB/b_velocityAcceleration
1/4 from Special:Permalink/1863116 to QB/a04DynForce Newton_forces
2/4 from Special:Permalink/1863117 to QB/a04DynForce Newton_sled
2/5 from Special:Permalink/1863118 to QB/a04DynForce Newton_tensions
1/5 from Special:Permalink/1863119 to QB/a05frictDragElast_3rdLaw
2/5 from Special:Permalink/1863120 to QB/a06uniformCircMotGravitation_friction

Quizbank/College Physics Sem 1/T3[edit]

2/14 from Special:Permalink/1828920 to QB/a06uniformCircMotGravitation_proof
1/3 from Special:Permalink/1828921 to QB/a07energy_cart1
2/3 from Special:Permalink/1863130 to QB/a07energy_cart2
2/3 from Special:Permalink/1863132 to QB/a08linearMomentumCollisions
3/5 from Special:Permalink/1863453 to QB/a09staticsTorques_torque

Quizbank/College Physics Sem 1/T4[edit]

2/4 from Special:Permalink/1863455 to QB/a10rotationalMotionAngMom_dynamics
2/4 from Special:Permalink/1863294 to QB/a11fluidStatics_buoyantForce
1/4 from Special:Permalink/1863299 to QB/a12fluidDynamics_pipeDiameter
1/3 from Special:Permalink/1863303 to QB/a13TemperatureKineticTheoGasLaw
2/4 from Special:Permalink/1863314 to QB/a14HeatTransfer_specifHeatConduct
2/4 from Special:Permalink/1863334 to QB/a15Thermodynamics_heatEngine

Quizbank/College Physics Sem 1/FE[edit]

1/4 from Special:Permalink/1863423 to QB/a02_1Dkinem_equations
1/12 from Special:Permalink/1863384 to QB/b_motionSimpleArithmetic
1/4 from Special:Permalink/1863096 to QB/a03_2Dkinem_2dmotion
1/19 from Special:Permalink/1863392 to QB/b_velocityAcceleration
1/4 from Special:Permalink/1863116 to QB/a04DynForce Newton_forces
1/4 from Special:Permalink/1863117 to QB/a04DynForce Newton_sled
1/5 from Special:Permalink/1863118 to QB/a04DynForce Newton_tensions
1/3 from Special:Permalink/1863130 to QB/a07energy_cart2
1/3 from Special:Permalink/1863132 to QB/a08linearMomentumCollisions
1/5 from Special:Permalink/1863453 to QB/a09staticsTorques_torque
1/4 from Special:Permalink/1863455 to QB/a10rotationalMotionAngMom_dynamics
1/4 from Special:Permalink/1863294 to QB/a11fluidStatics_buoyantForce
1/4 from Special:Permalink/1863299 to QB/a12fluidDynamics_pipeDiameter
1/3 from Special:Permalink/1863303 to QB/a13TemperatureKineticTheoGasLaw
1/4 from Special:Permalink/1863314 to QB/a14HeatTransfer_specifHeatConduct
1/4 from Special:Permalink/1863334 to QB/a15Thermodynamics_heatEngine


Links[edit]

User:Guy vandegrift/T/Errata d cp2